聚丙烯酸-DBDAB复合缓蚀剂的协同缓蚀作用  

Synergistic Inhibition of Polyacrylic Acid-DBDAB Complex Inhibitor

作　　者：郭英[1] 宋诗哲[2] 万小山[2] 李华[2] 林树成[2] 

机构地区：[1]中国民航学院理学院,天津300300 [2]天津大学材料学院,天津300072

出　　处：《天津师范大学学报（自然科学版）》2001年第2期11-14,共4页Journal of Tianjin Normal University：Natural Science Edition

摘　　要：运用稳态极化曲线和电化学阻抗谱等电化学测试方法 ,研究阳离子表面活性剂十二烷基二甲基苄基溴化铵 (DBDAB)与聚丙烯酸 (PAAC)复配在 2 .0mol·L- 1 HCl溶液中对铁腐蚀的协同缓蚀作用 .结果表明 ,具有阴离子表面活性剂某些特征的PAAC与DBDAB复配可产生较高的表面活性 ,在铁 盐酸界面上更容易吸附 ,其协同缓蚀作用十分显著 .The synergistic inhibition by cationic surfactant of dodecylbenzyl dimethyl ammonium bromide(DBDAB) and polyacrylic acid (PAAC) for pure iron in 2.0 mol·L -1 HCl solution is studied by using stable state polarization curves and EIS.The results show that the compound of PAAC by possessing some characteristics of anionic surfactant together with DBDAB may produce higher surface activation and complex inhibitor is easier to be adsorbed on the iron HCl solution interface than only using PAAC. DBDAB has marked synergism with PAAC on the corrosion of iron in HCl solution.

关 键 词：阳离子表面活性剂 聚丙烯酸 盐酸 协同缓蚀作用 DBDAB 复合缓蚀剂 

分 类 号：TG174.42[金属学及工艺—金属表面处理] TG171[金属学及工艺—金属学]